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๐ Power your vibe with flawless Bluetooth sound!
The Walfront ZK-TB21 is a high-power 2.1 channel Bluetooth digital amplifier board delivering up to 100W output with a wide 12-24V voltage range. It features advanced AM interference suppression and comprehensive protection mechanisms, all packed into a compact, durable design perfect for enhancing any audio setup.
| ASIN | B08GZBJWFZ |
| Best Sellers Rank | #10,433 in Electronics ( See Top 100 in Electronics ) #17 in Home Audio Amplifiers |
| Brand | Walfront |
| Brand Name | Walfront |
| Country Of Origin | China |
| Customer Reviews | 4.1 out of 5 stars 114 Reviews |
| Included Components | inc |
| Manufacturer | Walfront |
| Material Type | Material |
| Maximum Output Power | 100W |
| Maximum Supply Voltage | 24 Volts (DC) |
| Maximum supply voltage | 24 Volts (DC) |
| Minimum Supply Voltage | 12 Volts (DC) |
| Minimum supply voltage | 12 Volts (DC) |
| Model | TB21 |
| Mounting Type | Surface Mount |
| Mounting type | Surface Mount |
| Number of Channels | 2 |
| Output Power | 50 Watts |
| Package Type Name | Box" (meaning 'Box' in Spanish) |
| Part Number | TB21 |
| Specification Met | FCC |
| Supply Current | 5 Amps |
| Voltage | 24 Volts |
J**D
Best amplifier kit
I am happy ๐ these are the best items onbthis platform... really appreciate to the dealrs who are selling such nice products on Amazon. ๐๐ป
R**A
Low noise , no heat clear sounds .
I love this product . Only problem is mount in amplifier case .
M**A
Great product
Amazing thing
F**O
Todo funciona
Comprรฉ uno por mercado libre, y no le funcionรณ la extraรฑa auxiliar. Lo que me gustarรญa serรญa que funcionarรกn al mismo tiempo las extraรฑas Bluetooth y auxiliar....
N**N
Best bang for buck
Works really well for the price. Was hard to find a 2.1 amp with a powered sub connection since they all have LFE sub out and cost twice as much as this. Works perfectly, just need to keep the volume knob less than 50% otherwise I get lots of background static. But even at that level, its plenty loud, could be because I'm using 8ohm bookshelf speakers. I love the fact it has individual control for sub freq/vol and L/R treble/bass as well. All these features in an amp this cheap/small is impossible to find these days.
J**A
Fun and functional
Do it yourself assembly. Fun, and functional. Thanks!
R**V
Value for money
Works well. Worth the price tag. Can power upto 8 inch sub, frequency selection is roughly 30hz at minimum. Make sure to use a proper 19v or 24v power supply for the grunt. Noise from interference is there a little, more prominent when you dial the volume knob to max. But that's expected from bareboan amp boards like this. Make a proper chassis and ground it and we should be sorted with noise then. Choose soft tweeters has the treble can get harsh if dialled up. Mids and bass sounds slightly damped. But overall thisnis a great amp for small bookshelf and desktop speakers. Not sure about durability, which only time and usage style, care and luck will tell. Cheers!
S**R
"Not met my expectations"
Class D amplifier usually very good but this one doesn't felt that way may be some manufacturing issue or a faulty unit .
Trustpilot
2 weeks ago
1 day ago